Module for a light bar



FIG. 1 is a top isometric view of a module for a light bar;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

In FIGS. 1-7, broken lines are illustrative of environmental structure forming no part of the claimed design. 

CLAIM The ornamental design for a module for a light bar, substantially as shown and described. 